Evaluation of the Natural Radioactivity Levels and Radiological Assessment of Nuts Commonly Consumed in Ile-Ife, South West, Nigeria

Inuyomi, Samuel Oluwagbenga; Ore, Odunayo T.; Abiodun, Pelumi O.

doi:10.11648/j.rst.20190502.12

Cited by 3 publications

(2 citation statements)

References 9 publications

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“…Natural radionuclides found in terrestrial and aquatic food chains can be transferred to humans through ingestion of food. For this reason, international efforts were brought together collectively to apply adequate procedures in investigating radionuclides in food (Inuyomi et al, 2019), and to set crucial guidelines to protect against high levels of internal exposure that may be caused by food consumption. Radionuclides are introduced in the soil (which is significant in the yield of our planet ecosystems through application of inorganic fertilizers, chemical sprays, pesticides and erosion of NORM emit radiations that pose danger to human beings.…”

Section: Introductionmentioning

confidence: 99%

Estimation of transfer factor from soil to cassava in Ethiope East, Delta State, Nigeria

Ejoh,

Essiett,

Essien

et al. 2023

wojast

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Cassava is a very important staple food crop in Delta state. The aim of this research is to assess the activity concentration level and determine the transfer factor of radionuclide from soil to cassava in Ethiope Local Government Area of Delta state, Nigeria. The activity concentration of 40K, 238U and 232Th in soil and cassava samples collected from the study area were analysed using gamma spectrometry. A lead-shielded 3 x 3 inch coaxial type Sodium Iodide Thallium [NaI(TI)] doped detector crystal (Model No. 802 series, Canberra Inc.) coupled to a Canberra series multichannel Analyzer (MCA) (Model N0.1104) through a preamplifier was used. The results of the activity concentration in soil samples indicate that, 40K has the highest mean activity concentration ((38.66 ± 3.69) BqKg−1) with the highest value ((62.47 ± 5.67) BqKg−1) recorded at E2. The mean activity concentrations of 238U and 232Th are 3.65 ± 0.90 BqKg−1 and 0.46 ± 0.05 BqKg−1respectively. The peak values of 238U and 232Th are 5.07 ± 1.17 BqKg−1 and 0.98 ± 0.11 BqKg−1. From cassava, 40K varies from 75.06 to 200.08 BqKg−1 with the highest mean activity concentration of 99.62 ± 8.32 BqKg−1 and 200.08 ± 14.90 BqKg−1 as the highest value noted at C5. The mean activity concentrations of 238U and 232Th are 3.89 ± 0.93 BqKg−1 and 0.81 ± 0.09 BqKg−1 respectively. The maximum values of 238U and 232Th determined from the computation from cassava samples are 11.10 ± 2.48 BqKg−1 and 1.70 ± 0.18 BqKg−1. The results of this study show that the activity concentration of 40K, 238U and 232Th in the study area are lower than world average values of 420, 30 and 35 BqKg-1 in soil and cassava respectively, and it is therefore not harmful if consumed. The mean transfer factor of 40K, 238U and 232Th from soil to cassava are 3.12 ± 0.44, 0.95 ± 0.31 and 2.96 ± 0.91 respectively. The range of values of 40K, 238U and 232Th varied as 1.41 to 5.82, BDL to 2.98 and 0.21 to 9.35 correspondingly. Peak values of the TF were noted as 5.82 for 40K at E8, C8, 2.98 for 238U at at E9, C9 and 9.35 for 232Th at E9, C9. The high value of TR is accredited to the richness of the organic matter in the soil. The quick recycling of natural radionuclides through the soil-cassava suggests the presence of an internal cycling that help the build-up of the natural radionuclides.

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Section: Introductionmentioning

confidence: 99%

Estimation of transfer factor from soil to cassava in Ethiope East, Delta State, Nigeria

Ejoh,

Essiett,

Essien

et al. 2023

wojast

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show abstract

“…Natural radionuclides found in terrestrial and aquatic food chains can be transferred to humans through ingestion of food. For this reason, international efforts were brought together collectively to apply adequate procedures in investigating radionuclides in food [3], and to set crucial guidelines to protect against high levels of internal exposure that may be caused by food consumption [4]. Radionuclides are introduced in the soil (which is significant in the yield of our planet ecosystems [5] through application of inorganic fertilizers, chemical sprays, pesticides and erosion of NORM (Natural Occurring Radionuclide Materials) emit radiations that pose danger to human beings.…”

Section: Introductionmentioning

confidence: 99%

Assessment of Soil to Cassava Transfer Factor of Radionuclides in Ughelli North Local Government Area, Delta State, Nigeria

Ejoh,

Essiett,

Atat

et al. 2023

JUBPAS

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Background: This research was conducted to estimate the activity concentration level of 40K, 238U and 232Th in soil and cassava and determine the transfer factor from soil to cassava in Ughelli North, Delta State, Nigeria. Materials and Methods: These were examined using gamma spectrometry and considering a lead-shielded 3 x 3inch coaxial type Sodium Iodide Thallium doped detector. Results: The mean activity concentrations of 40K, 238U and 232Th are 45.49 ± 4.28 BqKg−1, 3.15 ± 0.77 BqKg−1 and 0.56 ± 0.06 BqKg−1 respectively in soil samples and 134.08 ± 11.59 BqKg−1, 3.89 ± 0.93 BqKg−1 and 0.81 ± 0.09 BqKg−1 correspondingly in cassava samples. The mean transfer factor of 40K, 238U and 232Th from soil to cassava are 3.44 ± 0.75, 1.94 ± 0.32 and 1.34 ± 0.54 respectively. Peak values of the TF were noted as 8.52 for 40K at U18, D18, 25.58 for 238U at U12, D12 and 5.71 for 232Th at U11, D11. Conclusion: The activity concentration of 40K, 238U and 232Th in the area are lower than the world average values. Consequently, it will not pose any radiological hazard if consumed. The high value of Transfer factor is attributed to the richness of the organic matter in the soil and may indicate high ability to transfer radionuclides in the soil to food crops but from the concentration information, these radionuclides present in the soil are low as well as annual effective doses. There is no radiological risk of ingestion.

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Heavy metals concentrations and naturally occurring radionuclides in soils affected by and around a solid waste dumpsite in Osogbo metropolis, Nigeria

Oladejo

Ogundele

Inuyomi

et al. 2021

Environ Monit Assess

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Evaluation of the Natural Radioactivity Levels and Radiological Assessment of Nuts Commonly Consumed in Ile-Ife, South West, Nigeria

Cited by 3 publications

References 9 publications

Estimation of transfer factor from soil to cassava in Ethiope East, Delta State, Nigeria

Estimation of transfer factor from soil to cassava in Ethiope East, Delta State, Nigeria

Assessment of Soil to Cassava Transfer Factor of Radionuclides in Ughelli North Local Government Area, Delta State, Nigeria

Heavy metals concentrations and naturally occurring radionuclides in soils affected by and around a solid waste dumpsite in Osogbo metropolis, Nigeria

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